State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China.
State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China.
Bioresour Technol. 2022 May;351:127004. doi: 10.1016/j.biortech.2022.127004. Epub 2022 Mar 15.
The great variety of biomass species offers unique features for synergistic optimization of process outcomes. In this work, spent mushroom substrate and bagasse with optimize ratio were processed to produce value-added products of activated carbon and biofuel yet achieve negative CO emission. By integrating experimental characterization, this work uses process simulation, techno-economic analysis and life-cycle assessment to evaluate the techno-economic viability and CO footprint of processes with single or dual-/mixed-biomass feedstocks. The combination of biomass species provides unique match of the production of flue gas and primary carbon that is critical for the optimization of mass and energy flow. Such combination has been demonstrated effective to improve product yield and energy efficiency. Results show that mixed biomass feedstock offers favourable figures such as high carbon efficiency of 66.74%, short payback period of 3.16 years, considerable net present value of 80.48 million dollars, and low GWP of -2.37 kg CO-eq.
生物质种类繁多，具有独特的特点，可以协同优化工艺成果。在这项工作中，优化比例的废弃蘑菇基质和甘蔗渣被加工成增值产品，即活性炭和生物燃料，同时实现负 CO 排放。通过整合实验特性，这项工作使用过程模拟、技术经济分析和生命周期评估来评估单种或双种/混合生物质原料的工艺的技术经济可行性和 CO 足迹。生物质种类的组合为烟气和原生碳的生产提供了独特的匹配，这对于质量和能量流的优化至关重要。这种组合已被证明可以有效提高产品产量和能源效率。结果表明，混合生物质原料具有较高的碳效率（66.74%）、较短的投资回收期（3.16 年）、可观的净现值（8048 万美元）和较低的 GWP（-2.37kg CO-eq）等有利指标。
